05100

05100 is a French postal code designated to the commune of Briançon in the Hautes-Alpes department, located in the Provence-Alpes-Côte d'Azur region in southeastern France. In France, postal codes are used to identify geographic areas for mail delivery and administrative purposes.

Geographically, the 05100 area lies in the Alpine arc near the border with Italy. The town of Briançon sits in a high valley and is known for its fortifications and historic town center. The 05100 code covers the urban area of Briançon and surrounding rural zones within the commune.

Briançon has historical significance dating back to medieval times. Its fortifications, designed and expanded during the era of Vauban, are recognized as part of the Fortifications of Vauban, a UNESCO World Heritage site. The town serves as a gateway to Alpine tourism, including nearby ski areas such as Serre Chevalier.

Economy in the 05100 area centers on tourism, services, and alpine activities. The region is served by regional transportation networks and road connections to the broader Hautes-Alpes department, and rail access connects Briançon to other parts of France and Italy. The 05100 postal code is used in postal addressing, municipal administration, and statistical records for the commune.